Josh Hamilton drew a two-out walk before Beltre sent a 1-0 pitch from Cahill (8-7) into the seats in left-center. The All-Star third baseman has homered in three consecutive games to give him 19 on the year.

Cahill's downfall was leaving a fastball up and over the plate to Beltre.

Meanwhile, Harrison (7-7) gave up six hits, struck out seven and walked one in 7 2-3 innings as Texas completed the four-game sweep to stretch its winning streak to a season-best seven games.

``It's tough, but (Harrison) threw better than I did,' Cahill said.

Mark Lowe retired the final batter in the eighth, and Neftali Feliz completed the six-hitter by working a perfect ninth for his 18th save in 22 chances.

``I was able to keep them off balance, moving the ball in and out,' Harrison said. ``I gave us a chance to win today. I knew it was going to be tough pitching against Cahill. He's a great pitcher and he made one mistake today and that's all we needed to win the ballgame.'

AL West-leading Texas opened the season with six consecutive wins, then topped that streak against Oakland. The Rangers have won seven consecutive games heading into the break for the first time in franchise history.

A game played in 98-degree heat wrapped up an emotional weekend for both teams following the death Thursday of a fan who reached for a ball tossed into the stands by Hamilton. Brownwood firefighter Shannon Stone tumbled over a rail, falling about 20 feet to the concrete below. He died less than an hour later.

Oakland was shut out for the 11th time this season and is 5-13 in its last 18 games after a six-game winning streak.

The A's fell to 16-32 on the road and a season-worst 14 games under .500 (39-53).

``We have confidence in each other,' Oakland left fielder Josh Willingham said. ``We know we can play better than this.'

The break comes at a good time for the A's.

``We have to put this half behind us and start playing better baseball,' Melvin said. ``We have to start scoring more runs and believe in ourselves offensively. We have some guys who can do some damage. We just haven't at this point.

``After coming in here and losing four games in a row, it's probably good to distance ourselves from that.'

NOTES: A's 1B Conor Jackson sat out after sustaining bruised ribs in a collision at first base with Texas' Elvis Andrus in the ninth inning of Saturday night's game. Jackson said the ribs weren't broken, but he had trouble raising his arms and wasn't even available to pinch hit. ... Melvin announced his post-break rotation: RHP Brandon McCarthy, RHP Rich Harden, Cahill and LHP Gio Gonzalez. ... A's C Kurt Suzuki was struck in the left ankle by a foul ball off the bat of Mitch Moreland in the seventh, but he remained in the game after he was on his back in pain for a few minutes.

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